Painting
Paint Calculator
Estimate separate wall paint, ceiling paint, primer, whole containers, leftover, and cost from measured surfaces and product coverage.
Project category
Painting calculators
Paint, primer, coverage, container, and project cost calculators.
Verified tools
Plan painting quantities transparently
What painting estimates need to show
Painting estimates combine measured surfaces, subtracted openings, coat count, and the actual product coverage. Wall paint, ceiling paint, and primer remain separate products with separate purchase quantities.
Published painting calculators disclose coverage, container rounding, price basis, and surface limitations. They do not choose a coating system or replace preparation, ventilation, product-safety, or hazardous-material guidance.
Read the full calculation methodologyPlan before calculating
Painting project guides
Project planning guide
How to Measure Walls and Ceilings for Paint
Measure actual surfaces and openings, then keep coats, coverage, container size, primer, and finish products independent.